Surgical · Spine

Laminectomy at one or two lumbar vertebral segments for exploration or decompression of the spinal cord or cauda equina, performed without facetectomy, foraminotomy, or discectomy — excluding spondylolisthesis cases.

Verified May 8, 2026 · 6 sources ↓

Medicare: $1,192.41
Total RVUs: 35.7
Global, days: 90
Region: Spine

Drawn from CMSMedtronicCgsmedicareEmedny

Documentation requirements

What must appear in the operative or office note to support the claim.

Source · Editorial brief grounded in 6 cited references ↓

Exact number of vertebral segments decompressed (one vs. two vs. more than two) — drives code selection between 63005 and 63017
Operative diagnosis explicitly documented; spondylolisthesis as the primary diagnosis redirects to 63012, not 63005
Confirmation that no concomitant facetectomy, foraminotomy, or discectomy was performed at the same level — those services require a different code
Surgical approach and anatomic landmarks documented by name; notes that reference only 'standard posterior approach' are audit flags
Medical necessity narrative tying imaging findings (stenosis grade, canal measurement) to the decision to perform decompression
If intraoperative neurophysiology monitoring was used, document that a separate, independent provider performed and billed the monitoring

Applicable modifiers

Modifiers commonly billed with this code.

Source · AMA CPT modifier descriptors · CMS NCCI Policy Manual

22 Increased complexity 51 Multiple procedures 59 Distinct service 62 Co-surgeons 78 Unplanned return — related 79 Unrelated during global 80 Assistant surgeon AS PA/NP/CNS assistant XS Separate structure

What this code covers

Source · Editorial summary grounded in 6 cited references ↓

CPT 63005 covers a posterior lumbar laminectomy at one or two vertebral segments where the surgeon removes laminar bone to decompress the spinal cord or cauda equina. The procedure is used for conditions such as lumbar spinal stenosis. Critically, the code excludes spondylolisthesis — if spondylolisthesis is the operative diagnosis, 63012 (Gill procedure) applies instead. If the surgeon also performs facetectomy, foraminotomy, or disc excision at the same level, a different code series (e.g., 63047) is required.

The 90-day global period bundles the preoperative visit on the day before surgery, the operative session itself, and all routine postoperative care through day 90. Intraoperative neurophysiology monitoring (95940, 95941, G0453) is not separately billable by the operating surgeon — only by a second, independent provider performing the monitoring. When 22830 (spinal fusion exploration) is performed in the same anatomic region as 63005, it cannot be billed separately; use modifier XS only if exploration occurs at a truly distinct anatomic site.

Code selection between 63005 (one or two segments) and 63017 (lumbar, more than two segments) turns entirely on the documented number of vertebral levels decompressed. Operative notes that fail to specify the exact number of levels treated are a primary audit target and a leading reason for payer downcodes or denials.

RVU & reimbursement

Component RVUs and Medicare national rate. Actual payment varies by GPCI locality.

Source · CMS Physician Fee Schedule, RVU26A · January 2026

Work RVU	16.02
Practice expense RVU	13.56
Malpractice RVU	6.12
Total RVU	35.7
Medicare national rate	$1,192.41
Global period	90 days

Payment by site of service

Medicare pays different rates by setting. HOPD typically pays substantially more than ASC for the same procedure.

Source · CMS OPPS Addendum B·ASC HCPCS payment rates·2026

Setting	Medicare rate (national)
Office (PFS non-facility) Procedure performed in physician's office	$1,192.41
HOPD (APC 5114) Hospital outpatient department	$7,413.38
ASC (PI G2) Ambulatory surgical center (freestanding)	$3,695.53

Common denial reasons

The recurring reasons claims for CPT 63005 get rejected.

Source · Editorial brief grounded in CMS NCCI edits, AAOS coding appeals, and cited references ↓

Operative note fails to specify the number of vertebral segments, triggering a downcode or payer request for records
Spondylolisthesis listed as the primary diagnosis — payers remap to 63012 and deny 63005 as miscoded
63005 billed same-day with facetectomy or foraminotomy codes at the same level without supporting documentation that distinct additional work was performed
Intraoperative neurophysiology codes billed by the operating surgeon rather than an independent monitoring provider, causing component bundling denials
Routine postoperative E&M visits submitted without modifier 24 during the 90-day global period
22830 billed in the same anatomic region as 63005 without modifier XS, resulting in automatic NCCI bundling denial

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 6 cited references ↓

01When does 63005 apply versus 63017?

63005 covers one or two lumbar segments. 63017 applies when more than two lumbar segments are decompressed in the same session. The operative note must document the exact number of levels — payers will downcode to 63005 if the note is ambiguous.

02Can 63005 be billed when the diagnosis is spondylolisthesis?

No. When spondylolisthesis is the operative diagnosis, 63012 (Gill procedure) is the correct code. Billing 63005 for a spondylolisthesis case will result in a denial or payer-initiated recode. Confirm the diagnosis before submitting.

03Can the operating surgeon bill intraoperative neuromonitoring (95940, 95941) alongside 63005?

No. Per NCCI policy, the surgeon performing the operative procedure cannot separately bill intraoperative neurophysiology testing codes. Only a second, independent provider performing the monitoring may bill those codes.

04Is 63005 billable same-day with a fusion code?

Yes, decompression and fusion are separately reportable when both are clearly documented and distinct. Use modifier 51 on the secondary procedure. Ensure the operative note independently supports both the decompression and the fusion work performed.

05What modifier applies to an unplanned return to the OR for a related complication within the 90-day global period?

Modifier 78 covers an unplanned return to the OR for a complication related to the original procedure during the global period. Modifier 79 is for an unrelated procedure — do not use these interchangeably, as inversion is a common audit finding.

06Can 22830 (exploration of spinal fusion) be billed with 63005 at the same level?

No. Per NCCI policy, 22830 cannot be billed with another spinal procedure in the same anatomic area. It is only separately reportable when performed at a distinct anatomic site, using modifier XS to document that separation.

07What happens to postoperative E&M visits during the 90-day global?

Routine post-op E&M visits are bundled into the 63005 global package and are not separately billable. If the visit addresses a problem unrelated to the surgery, append modifier 24 and document the unrelated condition clearly in the note.

Sources & references

Editorial content was developed using the following public sources. Last verified May 8, 2026.

Mira AI Scribe

Mira's AI scribe captures the exact number of lumbar levels decompressed, the operative diagnosis (flagging spondylolisthesis for redirect to 63012), and whether any concomitant facetectomy, foraminotomy, or disc removal was performed. It also notes whether intraoperative neurophysiology monitoring was conducted by an independent provider. This prevents the most common audit trigger for 63005 — an operative note that omits level count or diagnosis specificity, which forces coders to query the surgeon and delays claim submission.

See how Mira captures CPT 63005 documentation